Waste-trap.



PATENTED DEC. 26, 1905.-

.A. s. NEWTON.

WASTE TRAP.

APPLICATION FILED JUNEI, 1905.

" STATES PATENT mm.

WASTE-TRAP.

Specification of Letters Patent.

Patented Dec. 26, 1905.

Application filed June 1, 1905. Serial No. 263,286. I

T0 at whom it may concern.-

Be it known that LALBERT S. Nnwroma citi- Zen of the United States,residing at Providence, in the county of Providence and State of RhodeIsland, have invented certain new and useful Improvements inWVaste-Trapaof which the followingis a specification, reference beinghad therein to the accompanying drawings.

My invention relates to sanitary or waste traps of all kinds, and hasfor its objects the ends commonly sought in structures of such acharacter, but more particularly to provide a perpetual and eflicientwater seal against the accumulation and escape of gases in nonventilatedtraps.

To the above ends my invention consists in the novel internal flange andits relation to the various parts of the trap hereinafter described, andillustrated in the accompanying drawings, wherein Figure l is a verticalcentral section of a trap embodying my invention; Fig. 2, atrans' versesection of the same on linew w ofFig. 1; Fig. 3, a vertical section ofthe seal-flange and adjacent parts; Fig. A, a like section of the samewhen an auxiliary ring is employed. Figs. 5 and 6 are vertical sectionsof modified forms of traps embodying my invention.

Like reference characters indicate like parts throughout the views.

In the drawings, A represents the body of the trap, and B the inlet andG the outlet ducts or pipes.

D is the cap, havingits inner margin thread-7 ed to engage the threadsupon the exterior of the upper margin of the body, thereby producing ajoint (0. Upon the body exterior below the joint a projects an uprightextension-collar 6, intermediate which and the lower edge of the cap Dis the packing c. The collar 6 may be either connected with or cast tothe body of the trap, its purpose being to prevent leakage of water uponthe ceiling or parts below when occasion arises to remove the cap D.Extending from the inner margin of the body at its upper extremity, adjacent the joint (0, is an upwardly-inclined aunular flange E, whichproduces, in conjunction with the wall of the cap D, asubstantially V-shaped receptacle (Z.

F is the usual partition, whose upper end must lie in a plane not lowerthan the horizontal plane of the flange E; but in actual practice I findthe best results attained when the partition extends slightly above theflangeplane. The partition is diametrically disposed in relation to thetrap-body and rises from the baflie-plate G.

H is a horizontal shelf above the inlet-pipe, and I an extension of thevertical partition F.

The parts H and I are not essential to my trap and may be omitted, asshown in Figs. 5 and 6. In fact, my invention is equally operative in astructure like that shown in Fig. 6, wherein is substituted for thepartition and baffle-plate a continuation of the outlet-pipe G into thetrap, its upwardly-curved end F lying in the same or a higher horizontalplane than that of the flange E. The curved pipe end F may be providedwith the exterior collar or guard-plate 6.

While my invention is shown embodied in a brass or hard-metal trap, itis obviously as applicable to a lead structure. In the latter case,however, the cap D is screwed to an auxiliary eXteriorly-threadedhardened ring m, soldered to the body A, as shown in Fig. A. The ring atis described in detail in United States Letters Patent to me, No. 698,217, dated April 22, 1902.

The course of the water as it passes through.

the trap is indicated by the arrows in Figs. 1 and 6. When the wateroverflows in its ascent the upper edge of the partition F, it ofnecessity enters the annular pocket d and remains therein, as shown inFig. 3, even after or when the water in the body of the trap has reacheda lower level. The pocket d is therefore always filled with water and isa sure seal to the joint 40 against the escape of gases.

What I claim is 1. In a waste-trap, the combination with the body, thecap upon the body, and the vertical partition traversing the body belowthe cap, of an upwardly-inclined flange upon the interior of the bodyadjacent the cap, the free margin of said flange being in the samehorizontal plane or lower than the top of the partition.

2. In a waste-trap, the combination with the body, the cap upon thebody, and the curved ICO extremity of the outlet-pipe, of anupwardlyjoint, and an upright extension-collar upon inclined flange uponthe interior of the body the exterior of the body below the joint. 0adjacent the cap, the free margin of said flange In testimony whereof Ihave affixed my sigbeing in the same or lower horizontal plane nature inpresence of two witnesses.

5 than the extremity of the outlet-pipe. ALBERT S. NEWTON.

3. In a Waste-trap, the combination with the Witnesses: body and the capof an upwardly-inclined 5 WILLIAM E. BROWN, flange upon the interior ofthebody above the l HORATIO E. BELLOWS.

